Biochemistry Amino Acid Metabolic Disorder 81014654 Phenylketonuria is due to deficiency of - A Phenylalanine transaminase B Phenylalanine hydroxylase C Tyrosine transaminase D Tyrosine hydroxylase High-Yield Explanation Ans. is 'b' i.e., Phenylalanine hydroxylase o Repeat from previous session